Yeon-hee was born into an affluent family, and now runs a kindergarten for the rich. Her husband dies, leaving her and her young daughter, in need of a heart transplant, alone. Yeon-hee becomes desperate for a heart donor for her daughter, and offers a man a large sum of money in exchange for his ailing mother's heart. The desperate man, Hui-do, has a sudden change of heart and hijacks the ambulance transporting his mother to the surgery. Now Yeon-hee must go to any means possible to track down the man and his mother's heart.